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2023 Fiscal Year Final Research Report

Elucidation of the mechanism of mitotic regulation by NCYM and its contribution to neuroblastoma tumorigenesis

Research Project

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Project/Area Number 21K08610
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionChiba Cancer Center (Research Institute)

Principal Investigator

Suenaga Yusuke  千葉県がんセンター(研究所), がんゲノムセンター 進化腫瘍学研究室, 室長 (80581793)

Co-Investigator(Kenkyū-buntansha) 安藤 清宏  地方独立行政法人埼玉県立病院機構埼玉県立がんセンター(臨床腫瘍研究所), 臨床腫瘍研究所, 副部長 (10455389)
筆宝 義隆  千葉県がんセンター(研究所), 発がん制御研究部, 研究所長 (30359632)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords神経芽腫 / NCYM / MYCN / 分裂期 / 細胞死
Outline of Final Research Achievements

NCYM, an antisense gene of MYCN, contributes to tumor progression by promoting distant metastasis in neuroblastoma. The contribution of NCYM to tumor progression involves inhibition of cell death during mitosis, but the detailed molecular mechanism has not been elucidated. In this study, we found that the 52nd asparagine residue is important for the production of Myc-nick, which is important for mitotic regulation by NCYM. Transcriptome analysis showed that NCYM globally promote the translational efficiency of mitosis-related genes, and holographic microscopy with the treatment of NCYM inhibitors revealed that NCYM regulates an unknown type of mitotic cell death.

Free Research Field

分子腫瘍学

Academic Significance and Societal Importance of the Research Achievements

NCYMの分裂期制御機構の一端が明らかにされたことで、NCYMがなぜ神経芽腫のがん進展を促進できるのかについての理解が深まった。またNCYM阻害剤が同定されたことで、この阻害剤が神経芽腫における新規薬剤候補となる可能性が浮上した。今後、本研究で同定された未知の細胞死様式が解明されることで、これまでのがん治療薬とは全く作用機序が異なる治療法が開発できる可能性がある。

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Published: 2025-01-30  

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